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How many elements in the first period?
Period 1: 2 elements Period 2: 8 elements Period 3: 8 elements Period 4: 18 elements Period 5: 18 elements Period 6: 32 elements Period 7: 25 elements
The first period in the periodic table represents elements that possess only the first energy level s orbital therefore this period contains?
Two elements
What are elements in the first group of period table called?
alkali metals
How many elements are listed in period 4?
The fourth period contains 18 elements beginning with potassium and ending with krypton – one element for each of the eighteen groups. It sees the first appearance of d-block (which includes transition metals) in the table. Do You Agree? Sincerely, Jocelyn E.Flowers
Why first period contains 2 elements while second period contains 8 elements?
Each row in the table contains elements that have the same number of electron orbit shells. The first orbit, which is closest to the nucleus only has space for 2 electrons (no idea why, sorry). This is why only hydrogen (1 electron) and helium (2 electrons) are in the first row. The second row has the same inner shell, with 2 electrons and an outer shell with room for 8...and so on.
How many elements in the first period?
Period 1: 2 elements Period 2: 8 elements Period 3: 8 elements Period 4: 18 elements Period 5: 18 elements Period 6: 32 elements Period 7: 25 elements
What elements belong to the first period?
There are two elements in the first period, hydrogen and helium.
How many elements occur in each of the first three periods or the periodic table?
There are 2 elements in the first period, 8, 8 elements in 2nd and 3rd periods respectively,
The first period in the periodic table represents elements that possess only the first energy level s orbital therefore this period contains?
Two elements
What are elements in the first group of period table called?
alkali metals
What period are the following elements in HeGeRbI?
The elements H (Hydrogen) and He (Helium) are in the first period, Ge (Germanium) is in the fourth period, Rb (Rubidium) is in the fifth period, and I (Iodine) is in the fifth period.
Why is there no p block elements in the first period of the periodic table?
The first period of the periodic table can hold a maximum of 2 electrons, which are filled in the s orbital. There are no p orbitals in the first period, which is why there are no p-block elements in the first period. The p-orbital becomes available in the second period.
First element locate in period 3?
The first element in period three of the periodic table of chemical elements is sodium (Na).
What kind of shell does the first period in the periodic table have?
The first period of the periodic table's elements all have 1 energy level.
What is an elements period?
A period is a row of elements
The first period in the peroidical table represents elements that possese elements only the first energy level is orbital thefore this perid contains?
two elements, hydrogen and helium.
Do you miss your first period if your pregnant?
Sometimes but not always.
